hasn't there? where is the competition headed as far as the operating systems go, as these tablets and more of them come to market? >> since apple launched its first ipad, which was last year in april, it has become the world's dominant tablet player. and it will continue to be. but only for the next four years. that's according to gartner, a u.s.-based tech research firm. and gartner says apple had an 84% market share in global tablets in 2010. but it says that will fall over the next few years. in 2012, for example, gartner says apple's global market share could drop to under 64%. but it will be in 2015 that apple may lose its dominance in the market, going under 50%, to just about 47% of the global sales. as for android, the story is the opposite. look at these numbers here. in 2010, we saw that android only had a global market share in tablets of just about 14%.